Abstract
Communication through relay channels in wireless sensor networks can create diversity and consequently improve the robustness of data transmission for ubiquitous computing and networking applications. In this paper, we investigate the performances of relay channels in terms of diversity gain and throughput via both experimental research and theoretical analysis. Two relaying algorithms, dynamic relaying and fixed relaying, are utilised and tested to find out what the relay channels can contribute to system performances. The tests are based on a wireless relay sensor network comprising a source node, a destination node and a couple of relay nodes, and carried out in an indoor environment with rare movement of objects nearby. The tests confirm, in line with the analytical results, that more relay nodes lead to higher diversity gain in the network. The test results also show that the data throughput between the source node and the destination node is enhanced by the presence of the relay nodes. Energy consumption in association with the relaying strategy is also analysed. Copyright © 2009 John Wiley & Sons, Ltd.
| Original language | English |
|---|---|
| Pages (from-to) | 462-480 |
| Number of pages | 19 |
| Journal | Concurrency and Computation |
| Volume | 22 |
| Issue number | 4 |
| Early online date | 21 Sept 2009 |
| DOIs | |
| Publication status | Published - 25 Mar 2010 |
| Event | 10th IEEE International Conference on High Performance Computing and Communications - Dalian Liangyun Hotel, Dalian, China Duration: 25 Sept 2008 → 27 Sept 2008 |
Bibliographical note
Special Issue: Advances in High-Performance Computing and Communications (HPCC 2008)Keywords
- cooperative relaying
- wireless sensor network
- diversity